AP EAMCET · Maths · Trigonometric Ratios & Identities
\(\sin ^4 \frac{\pi}{8}+\sin ^4 \frac{3 \pi}{8}+\sin ^4 \frac{5 \pi}{8}+\sin ^4 \frac{7 \pi}{8}=\)
- A \(\frac{1}{4}\)
- B \(\frac{3}{8}\)
- C \(\frac{3}{2}\)
- D \(\frac{3}{4}\)
Answer & Solution
Correct Answer
(C) \(\frac{3}{2}\)
Step-by-step Solution
Detailed explanation
\(\sin ^4\left(\frac{\pi}{8}\right)+\sin ^4\left(\frac{3 \pi}{8}\right)+\sin ^4\left(\frac{5 \pi}{8}\right)+\sin ^4\left(\frac{7 \pi}{8}\right)\)…
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